Glossary/Dual system (hot water plumbing)
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WHO-Definition
A dual hot water system is a system where there is more than one source of energy used to heat water either directly or indirectly (Doyle KM 1990).
Explanation
A dual hot water system is one where the use of solar and/or solid fuel heating may supplement the primary energy sources such as electricity or gas.
References and Links
Doyle KM (1990) Plumbing and Gas-fitting Volume 2 Services and Roofing
WHO Lexicon page (translations and examples)
Other Definitions
References
See also
Dual system (hot water plumbing)
